First of all any reservation at any restuarant can be had as a single, this includes V&A and the Chef's Table.
However the pacing for the regular meal is about 2.5 hours and for CT is normally more than 3.5 hours. It really healps to have someone with you to preven boredom.
Last time I looked CT was $125 and the wine pairings were $60, but prices may have gone up recently. And these prices are plus tax and tip.